Implantable Collamer Lenses (ICL) Surgery for High Myopia and Astigmatism
- The Straits Eye Centre
- Sep 19
- 3 min read
What Is ICL Surgery?
Implantable Collamer Lenses (ICL) are advanced lenses surgically placed inside the eye to correct high myopia, hyperopia, and astigmatism. Unlike LASIK or SMILE, which reshape the cornea, ICL works by implanting a biocompatible lens between the natural lens and the iris.
This makes it an excellent option for patients with very high prescriptions or thin corneas who may not be suitable for laser vision correction.
Why Patients Choose ICL
Effective for high prescriptions: Corrects up to -18.00D of myopia.
Preserves the cornea: No tissue removal, making it suitable for thin or irregular corneas.
Reversible: The lens can be removed or replaced if needed.
UV protection: Built-in filters help protect against harmful UV rays.
Stable results: Provides sharp vision, especially for high myopia cases.
Who Is Suitable for ICL Surgery?
You may be a candidate if you:
Are aged 21–45 years
Have high myopia, hyperopia, or astigmatism
Have thin corneas or are unsuitable for LASIK/SMILE
Do not have glaucoma, cataracts, or other active eye diseases
Seek a reversible, long-term vision correction solution
The ICL Procedure: What to Expect
Assessment: Eye measurements and scans confirm suitability.
Pre-Surgery Preparation: May include a laser iridotomy to prevent fluid buildup.
Surgery: The ICL is inserted through a tiny incision and positioned behind the iris.
Duration: Typically 15–20 minutes per eye.
Recovery: Clear vision often returns within 1–2 days, with gradual stabilisation over weeks.
Benefits of ICL Compared to Other Surgeries
ICL vs LASIK: No corneal tissue removal, making it safer for thin corneas.
ICL vs SMILE: Suitable for very high prescriptions beyond SMILE’s correction range.
ICL vs PRK: Faster recovery and less discomfort.
Frequently Asked Questions
1. Is ICL surgery painful?
No. Anaesthetic drops are used. Patients may feel slight pressure but no pain.
2. How long does recovery take?
Most patients notice improvement within 24–48 hours. Vision stabilises over a few weeks.
3. Are the results permanent?
Yes, but the lens is removable if needed. Natural age-related changes, such as presbyopia or cataracts, may still occur.
4. What are the risks of ICL surgery?
Possible risks include infection, cataract formation, or increased eye pressure. These are rare with proper monitoring.
5. Is ICL surgery better than LASIK?
For high myopia or thin corneas, ICL may be safer and more effective. For moderate prescriptions, LASIK or SMILE may be equally suitable.
6. Is ICL covered by Medisave or insurance?
No. ICL is considered elective vision correction and is not claimable under Medisave or insurance in Singapore.
7. Can ICL treat astigmatism?
Yes. Toric ICLs are available for patients with significant astigmatism.
8. How long does the ICL last?
The lens is designed to remain in the eye indefinitely but can be replaced if necessary.
Meet Our Specialists
At The Straits Eye Centre, your vision care is in the hands of a dedicated team of experienced ophthalmologists. Each of our doctors brings unique expertise and a shared commitment to delivering thorough, patient-focused care for all ages. Whether you need advanced cataract surgery, paediatric eye management, or treatment for complex eye conditions, our team works together to provide the same attentive care we would want for our own families.
Dr Jayant V Iyer
Senior Consultant Eye Surgeon
Special interest: Cataract, Glaucoma, General Ophthalmology With specialist training in Singapore and the UK, Dr Jayant V Iyer has served as Head of Department at Sengkang General Hospital and Senior Consultant at Tan Tock Seng Hospital. He is committed to delivering safe, precise surgical care with clear communication at every stage.
Dr Jason Lee
Senior Consultant & Medical Director
Special interest: Oculoplastics, General Ophthalmology, Myopia, Cataract, Diabetic Retinopathy Dr Jason Lee has extensive training in eyelid, orbital, and tear system surgery, with fellowships completed in Taiwan and China. Previously a Senior Consultant at Khoo Teck Puat Hospital, he co-founded The Vision Mission, a non-profit bringing sustainable eye care to communities in Asia.
Cost, Medisave, and Insurance
Many procedures at The Straits Eye Centre are eligible for Medisave claims under MOH guidelines, and certain insurance plans may cover part or all of your treatment costs. Our patient care team will guide you through eligibility, claim limits, and paperwork, so you can focus on your recovery. For more details, refer to our Medisave & Insurance Guide.
Secure Your Appointment at The Straits Eye Centre
at Parkway East Hospital
Your vision health deserves timely and professional attention. Book your appointment now at our Parkway East Hospital clinic and take the first step towards clearer, healthier sight.
